Both ERD or NERD patient who confirmed by EGD findings within 12 months prior to V1 and have a symptom with moderate or more, at least once per week within 1 week prior to V1 and Patients between age 20 and 80with typical reflux symptoms

Among the patient who have not taken PPI or H2 blocker within 4 weeks prior to V1, needs to be prescribed PPIs 4~8 weeks as a part of the routine clinical practice due to typical symptom